ArchiveBox/archivebox/config/paths.py

218 lines
10 KiB
Python

__package__ = 'archivebox.config'
import os
import hashlib
import platform
from pathlib import Path
from functools import cache
from datetime import datetime
from .permissions import SudoPermission, IS_ROOT, ARCHIVEBOX_USER
#############################################################################################
PACKAGE_DIR: Path = Path(__file__).resolve().parent.parent # archivebox source code dir
DATA_DIR: Path = Path(os.getcwd()).resolve() # archivebox user data dir
ARCHIVE_DIR: Path = DATA_DIR / 'archive' # archivebox snapshot data dir
IN_DOCKER = os.environ.get('IN_DOCKER', False) in ('1', 'true', 'True', 'TRUE', 'yes')
DATABASE_FILE = DATA_DIR / 'index.sqlite3'
#############################################################################################
@cache
def get_collection_id(DATA_DIR=DATA_DIR) -> str:
"""Get a short, stable, unique ID for the current collection (e.g. abc45678)"""
collection_id_file = DATA_DIR / '.archivebox_id'
try:
return collection_id_file.read_text().strip()
except (OSError, FileNotFoundError, PermissionError):
pass
# hash the machine_id + collection dir path + creation time to get a unique collection_id
machine_id = get_machine_id()
collection_path = DATA_DIR.resolve()
try:
creation_date = DATA_DIR.stat().st_ctime
except Exception:
creation_date = datetime.now().isoformat()
collection_id = hashlib.sha256(f'{machine_id}:{collection_path}@{creation_date}'.encode()).hexdigest()[:8]
try:
# only persist collection_id file if we already have an index.sqlite3 file present
# otherwise we might be running in a directory that is not a collection, no point creating cruft files
if os.path.isfile(DATABASE_FILE) and os.access(DATA_DIR, os.W_OK):
collection_id_file.write_text(collection_id)
# if we're running as root right now, make sure the collection_id file is owned by the archivebox user
if IS_ROOT:
with SudoPermission(uid=0):
if ARCHIVEBOX_USER == 0:
os.system(f'chmod 777 "{collection_id_file}"')
else:
os.system(f'chown {ARCHIVEBOX_USER} "{collection_id_file}"')
except (OSError, FileNotFoundError, PermissionError):
pass
return collection_id
@cache
def get_machine_id() -> str:
"""Get a short, stable, unique ID for the current machine (e.g. abc45678)"""
MACHINE_ID = 'unknown'
try:
import machineid
MACHINE_ID = machineid.hashed_id('archivebox')[:8]
except Exception:
try:
import uuid
import hashlib
MACHINE_ID = hashlib.sha256(str(uuid.getnode()).encode()).hexdigest()[:8]
except Exception:
pass
return MACHINE_ID
@cache
def get_machine_type() -> str:
"""Get a short, stable, unique type identifier for the current machine (e.g. linux-x86_64-docker)"""
OS: str = platform.system().lower() # darwin, linux, etc.
ARCH: str = platform.machine().lower() # arm64, x86_64, aarch64, etc.
LIB_DIR_SCOPE: str = f'{ARCH}-{OS}-docker' if IN_DOCKER else f'{ARCH}-{OS}'
return LIB_DIR_SCOPE
def dir_is_writable(dir_path: Path, uid: int | None = None, gid: int | None = None, fallback=True) -> bool:
"""Check if a given directory is writable by a specific user and group (fallback=try as current user is unable to check with provided uid)"""
current_uid, current_gid = os.geteuid(), os.getegid()
uid, gid = uid or current_uid, gid or current_gid
test_file = dir_path / '.permissions_test'
try:
with SudoPermission(uid=uid, fallback=fallback):
test_file.exists()
test_file.write_text(f'Checking if PUID={uid} PGID={gid} can write to dir')
test_file.unlink()
return True
except (IOError, OSError, PermissionError):
pass
return False
# @cache
# def get_LIB_DIR():
# """
# - should be shared with other collections on the same host
# - must be scoped by CPU architecture, OS family, and archivebox version
# - should not be shared with other hosts/archivebox versions
# - must be writable by any archivebox user
# - should be persistent across reboots
# - can be on a docker bin mount but probably shouldnt be
# - ok to have a long path (doesnt contain SOCKETS)
# """
# from .version import detect_installed_version
# HOST_DIRS = PlatformDirs(appname='archivebox', appauthor='ArchiveBox', version=detect_installed_version(), opinion=True, ensure_exists=False)
# lib_dir = tempfile.gettempdir()
# try:
# if 'SYSTEM_LIB_DIR' in os.environ:
# lib_dir = Path(os.environ['SYSTEM_LIB_DIR'])
# else:
# with SudoPermission(uid=ARCHIVEBOX_USER, fallback=True):
# lib_dir = HOST_DIRS.site_data_path
# # Docker: /usr/local/share/archivebox/0.8.5
# # Ubuntu: /usr/local/share/archivebox/0.8.5
# # macOS: /Library/Application Support/archivebox
# try:
# with SudoPermission(uid=0, fallback=True):
# lib_dir.mkdir(parents=True, exist_ok=True)
# except PermissionError:
# # our user cannot
# lib_dir = HOST_DIRS.user_data_path
# lib_dir.mkdir(parents=True, exist_ok=True)
# if IS_ROOT or not dir_is_writable(lib_dir, uid=ARCHIVEBOX_USER):
# if IS_ROOT:
# # make sure lib dir is owned by the archivebox user, not root
# with SudoPermission(uid=0):
# if ARCHIVEBOX_USER == 0:
# # print(f'[yellow]:warning: Waring: Creating SYSTEM_LIB_DIR {lib_dir} with mode 777 so that non-root archivebox users can share it.[/yellow] (caches shared libs used by archivebox for performance)', file=sys.stderr)
# os.system(f'chmod -R 777 "{lib_dir}"')
# else:
# os.system(f'chown {ARCHIVEBOX_USER}:{ARCHIVEBOX_GROUP} "{lib_dir}"')
# else:
# raise PermissionError()
# except (PermissionError, AssertionError):
# # raise PermissionError(f'SYSTEM_LIB_DIR {lib_dir} is not writable by archivebox user {ARCHIVEBOX_USER}:{ARCHIVEBOX_GROUP}')
# print(f'[red]:cross_mark: ERROR: SYSTEM_LIB_DIR {lib_dir} is not writable by archivebox user {ARCHIVEBOX_USER}:{ARCHIVEBOX_GROUP}[/red]', file=sys.stderr)
# return lib_dir
# @cache
# def get_TMP_DIR():
# """
# - must NOT be inside DATA_DIR / inside a docker volume bind mount
# - must NOT have a long PATH (UNIX socket path length restrictions)
# - must NOT be shared with other collections/hosts
# - must be writable by archivebox user & root
# - must be cleared on every boot / not persisted
# - must be cleared on every archivebox version upgrade
# """
# from .version import detect_installed_version
# HOST_DIRS = PlatformDirs(appname='archivebox', appauthor='ArchiveBox', version=detect_installed_version(), opinion=True, ensure_exists=False)
# # print('DATA_DIR OWNED BY:', ARCHIVEBOX_USER, ARCHIVEBOX_GROUP)
# # print('RUNNING AS:', self.PUID, self.PGID)
# run_dir = tempfile.gettempdir()
# try:
# if 'SYSTEM_TMP_DIR' in os.environ:
# run_dir = Path(os.environ['SYSTEM_TMP_DIR']).resolve() / get_collection_id(DATA_DIR=DATA_DIR)
# with SudoPermission(uid=0, fallback=True):
# run_dir.mkdir(parents=True, exist_ok=True)
# if not dir_is_writable(run_dir, uid=ARCHIVEBOX_USER):
# if IS_ROOT:
# with SudoPermission(uid=0, fallback=False):
# if ARCHIVEBOX_USER == 0:
# # print(f'[yellow]:warning: Waring: Creating SYSTEM_TMP_DIR {run_dir} with mode 777 so that non-root archivebox users can access it.[/yellow]', file=sys.stderr)
# os.system(f'chmod -R 777 "{run_dir}"')
# else:
# os.system(f'chown {ARCHIVEBOX_USER}:{ARCHIVEBOX_GROUP} "{run_dir}"')
# else:
# raise PermissionError()
# assert len(str(run_dir / 'supervisord.conf')) < 95, 'SYSTEM_TMP_DIR path is too long, please set SYSTEM_TMP_DIR env variable to a shorter path (unfortunately unix requires socket paths be < 108 chars)'
# return run_dir
# run_dir = (HOST_DIRS.site_runtime_path / get_collection_id(DATA_DIR=DATA_DIR)).resolve()
# try:
# assert len(str(run_dir)) + len('/supervisord.sock') < 95
# except AssertionError:
# run_dir = Path(tempfile.gettempdir()).resolve() / 'archivebox' / get_collection_id(DATA_DIR=DATA_DIR)
# assert len(str(run_dir)) + len('/supervisord.sock') < 95, 'SYSTEM_TMP_DIR path is too long, please set SYSTEM_TMP_DIR env variable to a shorter path (unfortunately unix requires socket paths be < 108 chars)'
# with SudoPermission(uid=0, fallback=True):
# run_dir.mkdir(parents=True, exist_ok=True)
# if IS_ROOT or not dir_is_writable(run_dir, uid=ARCHIVEBOX_USER):
# if IS_ROOT:
# with SudoPermission(uid=0):
# if ARCHIVEBOX_USER == 0:
# # print(f'[yellow]:warning: Waring: Creating SYSTEM_TMP_DIR {run_dir} with mode 777 so that non-root archivebox users can access it.[/yellow]', file=sys.stderr)
# os.system(f'chmod -R 777 "{run_dir}"')
# else:
# os.system(f'chown {ARCHIVEBOX_USER}:{ARCHIVEBOX_GROUP} "{run_dir}"')
# else:
# raise PermissionError()
# except (PermissionError, AssertionError):
# # raise PermissionError(f'SYSTEM_TMP_DIR {run_dir} is not writable by archivebox user {ARCHIVEBOX_USER}:{ARCHIVEBOX_GROUP}')
# print(f'[red]:cross_mark: ERROR: SYSTEM_TMP_DIR {run_dir} is not writable by archivebox user {ARCHIVEBOX_USER}:{ARCHIVEBOX_GROUP}[/red]', file=sys.stderr)
# return run_dir